3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "ß"; echo "Not unicode safe:" var_dump($a[0], $a[1]); echo "Select's 3th character" $hey = ">>@<<"; var_dump($hey[2]);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
5.4.310.0040.04212.49
5.4.300.0080.03412.50
5.4.290.0070.03612.49
5.4.280.0080.03312.39
5.4.270.0060.03512.39
5.4.260.0060.03812.39
5.4.250.0050.04112.39
5.4.240.0060.03812.39
5.4.230.0050.03912.38
5.4.220.0080.03412.38
5.4.210.0060.03512.38
5.4.200.0090.03312.38
5.4.190.0070.03512.38
5.4.180.0060.03512.38
5.4.170.0050.04012.38
5.4.160.0050.03712.38
5.4.150.0080.03612.38
5.4.140.0090.04112.07
5.4.130.0040.03712.05
5.4.120.0070.03612.01
5.4.110.0050.03712.01
5.4.100.0050.04112.02
5.4.90.0070.03812.01
5.4.80.0070.03712.01
5.4.70.0070.03512.00
5.4.60.0040.03712.01
5.4.50.0080.05312.00
5.4.40.0050.05012.00
5.4.30.0140.04211.99
5.4.20.0050.03511.99
5.4.10.0040.03911.99
5.4.00.0060.03611.48
5.3.280.0050.04812.71
5.3.270.0080.05012.72
5.3.260.0080.04912.72
5.3.250.0050.03812.71
5.3.240.0040.03912.72
5.3.230.0050.03912.71
5.3.220.0050.03812.68
5.3.210.0060.03912.68
5.3.200.0050.03912.68
5.3.190.0070.04112.68
5.3.180.0060.03812.67
5.3.170.0050.03712.67
5.3.160.0060.04012.67
5.3.150.0120.03412.67
5.3.140.0040.04312.66
5.3.130.0060.04012.66
5.3.120.0070.03812.66
5.3.110.0040.04112.66
5.3.100.0060.03912.12
5.3.90.0020.04012.08
5.3.80.0060.03712.07
5.3.70.0060.03712.07
5.3.60.0050.03712.07
5.3.50.0100.03212.00
5.3.40.0090.03412.00
5.3.30.0050.03711.95
5.3.20.0090.03211.73
5.3.10.0070.03411.70
5.3.00.0030.03911.68
5.2.170.0060.0299.18
5.2.160.0040.0309.18
5.2.150.0020.0339.18
5.2.140.0050.0309.18
5.2.130.0060.0279.14
5.2.120.0060.0269.14
5.2.110.0020.0319.14
5.2.100.0080.0379.14
5.2.90.0090.0379.14
5.2.80.0070.0409.13
5.2.70.0030.0449.14
5.2.60.0110.0359.09
5.2.50.0060.0289.06
5.2.40.0050.0289.04
5.2.30.0040.0299.01
5.2.20.0040.0299.00
5.2.10.0030.0298.92
5.2.00.0030.0318.78
5.1.60.0050.0238.07
5.1.50.0030.0268.07
5.1.40.0050.0238.05
5.1.30.0050.0258.40
5.1.20.0070.0238.42
5.1.10.0040.0268.14
5.1.00.0040.0268.14
5.0.50.0040.0236.62
5.0.40.0020.0206.48
5.0.30.0020.0326.29
5.0.20.0020.0216.26
5.0.10.0040.0196.24
5.0.00.0050.0296.23
4.4.90.0030.0154.77
4.4.80.0020.0164.75
4.4.70.0010.0174.75
4.4.60.0010.0174.76
4.4.50.0040.0134.77
4.4.40.0020.0254.70
4.4.30.0020.0164.76
4.4.20.0010.0164.84
4.4.10.0040.0144.85
4.4.00.0020.0254.76
4.3.110.0010.0174.67
4.3.100.0020.0154.66
4.3.90.0020.0154.63
4.3.80.0010.0264.59
4.3.70.0020.0154.63
4.3.60.0020.0154.63
4.3.50.0030.0154.63
4.3.40.0030.0234.54
4.3.30.0030.0153.29
4.3.20.0030.0153.27
4.3.10.0030.0153.22
4.3.00.0070.01315.29

preferences:
136.29 ms | 1398 KiB | 7 Q